/*
 * Created on 15-Dec-2004
 * Created by Paul Gardner
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */

package com.aelitis.azureus.core.proxy;

import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.URL;

/**
 * @author parg
 * 
 */

public interface AEProxyAddressMapper {
    /**
     * SOCKS 5 is limited to 255 char DNS names. So for longer ones (e.g. I2P 'names') we have to replace then with somethin shorter to get through
     * the SOCKS layer and then remap them on the otherside. These functions are only active if a SOCKS proxy is enabled and looping back (in process
     * is the assumption)
     * 
     * @param address
     * @return
     */

    public String internalise(String address);

    public String externalise(String address);

    public URL internalise(URL url);

    public URL externalise(URL url);

    public PortMapping registerPortMapping(int local_port, String ip);

    public InetSocketAddress applyPortMapping(InetAddress address, int port);

    public interface PortMapping {
        public void unregister();
    }
}
